Heel-attaching machine



T. LUND.

HEEL ATTACHING MACHINE. APPLicATloN FILED 0m19.191s.

1,406,953@ Patented Feb. 21, 1922.

2 SHEETS-SHEET 2.`

UNITED STATES PATENT OFFICE.

THOMAS LUND, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNTE-D SHOE MACHIN- 13R-Y CORPORATION, F PATERSON, NEWT JERSEY, A CORPORATION OF NEW JERSEY.

nest-errements MACHINE.

Specification of Letters IEatent.V

Patented Feb. 21, 1922.

Application filed October 19, 1918. Serial No. 258,848.

T 0 all ywhom it' muy concern Be it known that Timmins LUND, a citizen oit the United States, residing at Beverly, in the county of Essex and State oit Massachusetts, have invented certain Improvements in Heel-Attaching Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

rThis invention relates to heel attaching machines, and its primary object is the provision ot a machine which, apart from the supplying and removing of a boot or shoe to be heeled and starting the machine, will be entirely automatic in performing the operations incident to attaching a heel. example of a machine for partially accomplishing this object is illustrated in Letters Patent No. 1,13t,279, granted April (i, 1915, upon the application of Benjamin-F. Mayo. In that machine, however, they heel and nail supplying mechanism is set in operation by a treadle controlled device actuated by the operator, while the heel attaching mechanism is startedby another movement of the treadle by the operator. p Y

ln accordance with the present invention nail supplying or heel supplying means or both is, by a novel arrangement, placed under the control ot va power driven part of the machine, its operation being entirely automatic and requiring` no attention whatever on th part ot the operator. in increase in speed and certainty in operation are, therefore, insured. In a preferred form of the invention the nail and heel supplying devices are under the control of the heel attaching mechanism and are so constructed and arranged that the retractionof the attaching mechanism after an attaching operation, initiates the movements of said devices. with certainty in timed relation to the at- 'aching operation, and the sole duty of the operator is to supply the work to the machine and depress the startingitreadle.

l.While I have herein illust-rated and deseribel one speciiic embodiment of' my invention it should be understood that the details of construction may be changed in various respects within the scope et the appended claims,

Onev

These devices are thus operatedV 1n the drawings,

Fig.k 1 is a view in side elevation of a machine embodying the invention;

Fig. 2 is a persepctive view on an enlarged scale of the principal parts or' the mechanism; and

Figs. 3 and e are plan-views of the nail and heel supplying carrier in different operating positions.

10 indicates the frame of a heeling machine which may be of the general type shown in Letters Patent No. 1,157,688, granted October 26, 1915, uponthe application of Lester L. Glidden. The nailing die 12 is carried by a cross head let supported upon the upper ends of 'side rods 16 actuated by toggles 1S to raise the die toapply pressure to the work as aY preliminary to the driving ot the heel attaching nails. The shoe, to which the heel is to be attached, is supported above the die hy a depending work support or jack 20.

The Vnail drivers 22 are carried in a driver head 24- actuated by the reciprocating spindle 2G to drive the attaching nails, after the pressure has been applied to the work by the nailing die.

.fr swinging carrier V28 is mounted to oscillate horizontally about a center 30 and is pr vided with a removable form 32 having a heel holding recess'i. This form may be readily exchanged for others hav-V ing recesses to htheels of various sizes and shapes.

rlhe carrier 2S is provided with an ei:- tensiou 36 which operates as a spanker plate in one position of the carrier, and an opposite extension 38, for a purpose to be described hereinafter. y

The 'nail carrier 40, as illustrated, is similar to the carrier usually provided upon this type of heeling machine and'is mount-ed upon an arm 4t2 which oscillates, about a center 44, from the nail receiving position shown in Fig. 3 to a position over the die 12, in which the load of nails is delivered to the die. The nail carrier arm 4t2 is connected by a link 46 to an arm 48, rigid with the heel carrier 28, and the heel and nail 84, and the friction member 66 is restrainedV which has, at its upper end, one member 64 of a friction clutch.` The other member 66 of the friction clutch is secured to the upper end of an upright shaft 68 which passes loosely through the' hollow shaft 62. An expansion spring 70 surrounding the lower portion of the shaft 68 tends always to keep the friction members 64 and 66 in driving engagement with each other.

Extending upwardly from the friction member 66 is a crank pin 72, upon which is pivoted one member 74 of an extensible link. The member 74 is reduced in diameter at 76 and isA telescopically connected with the second member 78 of the extensible link, which is in turn pivoted at 80 to the arm 48. A pull spring 82, connecting the members 74 and 78 tends to .keep the link shortened, but permits a yielding extension of the link, when necessary.

lt will be apparent that the continuously rotating friction member 64 is always in driving engagement with the cooperating friction member 66, which, if unrestrained, would rotate and, through the described connections, osoillate the heel and nail carriers continually. The movements of the friction member 66 and of the carriers are, however, controlled by latches and stops now to be described.

A vertically reciprocable stop bar 84 is slidably mounted in a stationary guide `86 and is normally held up, by a spring88, to a position where the upper end of the stop bar is in the path of a stop member 90 secured to the periphery of the friction member 66. ln the position of the parts shown in Figs. 2 and 4, the forward face of the stop member 90 is in engagement with the stop bar from rotation, although the co-operating member 64 continues to run. The stop bar 90 also has in its lower edge a notch 92, into which the upper end of the stop bar 84 enters to hold the friction member 66 in a second position, under conditions which will be de scribed in explaining the operation of the machine. f

Depression of the bar 84 to permit partial rotation of the friction member 66 is effected by a tappet 94 pivoted at 96 to the driver head 24 and moving therewith; This tappet has a downwardly extending member 98 and a heavier, forwardly extending arm 100. The portion 98 is arranged to engage a lug 102 projecting from the side of the stop bar 84. ln the descent of the driver head 24 after a nail driving operation, the portion 98 of the tappet enga-ges the lug 102 and lowers the stop bar 84 sufficiently to release the friction member66 and permit it to rotate until it is again restrained. This lowering of the stop bar 84 occurs before the driver head has reached the lower limit of its movement, just prior to which time the arm 100 engages a pin 104 adjustably threaded into a stationary bracket 106 and secured in adjusted position by a lock nut 108, thus causing the tappet to be rocked about, its pivot and disengaged from the lug 102, whereupon the stop bar 84 immedi-4 ately rises under the influence of the spring 88 into position to restrain the `friction member 66 from rotation. The point in the `descent of the driver head at which the stop bar 84 Shall be released may be varied, as required, by `adjusting the height of the pin 104.

The swinging heel carrier 28 is provided at 110 with a lug arranged for engagement, in the heel attaching position of the carrier, with a latch 112 which is loosely pivoted at 114 to the' die carrier 14. The latch 112, when the parts are inthe position shown in Figs. 2 and 3, acts as a detent to keep the carrier 28 in position with the recess 34 of the heel form in register with the ynailing die. A pin 118, mounted in the driver head 24, operates, when the driver head rises, to ldisengage the latch 112 from the lug 110,k permitting, so far as that latch is concerned, movement of the carrier 28 in a clockwise direction as soon as the holding pressure is releasedfrom the work.

Located above the extension 38 of the carrier 28 is an upright magazine `116 for supporting in column forma-tion a supply of heels to be attached to shoes. it is assumed that a supply of heels will be maintainedV in the magazine at all times when the machine is being used.

The operation .of the machine is as follows: Assuming a supply of heels in Vthe magazine 116, a load of nails in thenailing ie and a heel in the heel form 32, occupying the position shown in Fig. 3, with the heel lover the nailing die and the nail carrier 40 in nail receiving position, a shoe is jacked and swung into position over the heel. It will be observed that at this time the stop bar 84 is in engagement with the forward face of the stop member 90, and that the friction member 66 is stopped in such a position that the link 74,]78 is ein4 tended and the spring 82 under tension. The carrier v28 is,\nevertheless, accurately locked in position, against-the vtendency of the spring 82 to move it, by the latch 112. The treadle of the machine is next actuated and the machine started. The work having been measured, theV nailing die is elevated to apply the final pressure to the work.

mmediately following this action, the drivers rise automatically to drive the at` taching nails through the heel into the shoe. Near, or at the end of, their rising movement, the pin 113 trips the latch 112, unlocking the heel carrier 28.. The shoesupport and nailing die are next separated, lifting` the heel, which is now attached tc the shoe. out of the form 32. During this time the driver head is descending and during its descent the tappet 94 lowers the locking bar 84 sufficiently to permit the friction member 66 to start to rotate. The tappet, on striking the pin 104, is immediately disengaged from the lugy 102 on the locking bar, and the latter, rising, enters the notch 92 in the stop member 90, restraining the friction member 66 from further rotation.Y

This position of the friction member 6G is such that when-the lost motion in the expansible link has been taken up by the spring 82, the carrier 2S will have been moved to the position illust ated in Fig. 4, wherein the spanker plate 3G is over the nailing die and immediately beneath the heel. rlhe starting treadle oit the machine is now again actuated and the regular cycle ot operation of the machine is carried out to spank smooth the top litt tace ot the attached heel.

1n the descent ot the driver head 24 after. the release of the spanking pressure the stop bar 84 is lowered Jtrom the notch 92, the friction member 66 being allowed to make nearly a complete revolution in the direction indicated by the arrow until the forward tace of the stop member 90 again encounters the bar 84 which has, in the meantime, again risen to its normal positionJ During this revolution of the friction member 66 from the position shown in Fig. 4 to that. shown in Fig. 3, the connected heel and nail carriers are, through the connections 72, 74, 82, 78, SO, first swung to the extreme lett, where the nail carrier 4() deposits its load of nails in the nailing die l2, and the recess 34 in the heel form 32, arriving beneath the magazine 116, receives a heel therefrom; and then back to the ei:- treme right, where the nail carrier 40 is in nail receiving position and the heel in the form 32 is. over the nailing die, in which position the carrier is again positively and accurately locked by the latch 112. rfhis locking occurs before the member 66 is stopped and the last portion of the rotation oiC said member serves-to extend the link 74, 78 and place the spring 82 again under tension. 1t will be observed that the eXtension 38 or" the heel carrier 28 serves to support the column of heels in the magazine 11G at all times, except when the heel `torni 32 is in heel receiving posit-ion.

1t will be apparent that the nail and heel supplying mechanisms areboth under thc control oia power driven part of the machine, speciiically the driver head, and, being v Having described my invention, what l claim as new and desire to secure by Letters Patent of the United States is 1. A heel attaching machine having, in combination, a shoe support, power actuated mechanism for attaching a heel to a shoe sustained upon said support, power actuated means constructed and arranged to bring nails to the attaching mechanism, and means under the-control of said attaching mechanism for ei'l'ecting the actuation ot said means. y

2. A heel attaching machine having, in combination, a shoe support, power actuated mechanism for attaching a heel to a shoe sustained upon said support, power actuated mea-ns constructed and arranged Vto bring nails tothe attaching mechanism, and means under the control of said attaching mechanism tor effecting the actuation of said means in timed relation to the operation of the attaching mechanism.

3. A heel attaching machine having, in combination, a shoe support, power actuated mechanism for attaching a heel to a shoe sustained upon said support, oppositely movable power actuated means for bringing nails into position to be driven, and means undei the control of saidattaching mecha-- nism for effecting opposite movements ont said ymeans after a single operation of the attaching mechanism.

4. A heel attaching machine having, in combination, a shoe support, power actuated mechanism for attaching a heel to a shoe sustained uponsaid support, power actuated means for bringing heels into position to be attached, and means under the control oi said attaching mechanism for eiiiecting the actuation of said means.

5. A heel attaching machine having, in combinatioma shoe suppoit, power actuated mechanism for attaching a heel to a shoesustained upon said support, power actuated means for bringing heels into position to be attached, and means under the control of said attaching 'mechanism 'for eiiecting the actuation of said means in time-d relation to the operation of the attaching mechanism.

6. A heel attaching machine l'iaving, in combination, a shoe support, power actuated mechanism for attaching a heel to a shoe sustained upon said support, power ac` tuated means Vfor bringing heels inte poand that the operator is .n

sition to be attached, and means' under the control oiI said attaching mechanism for effecting the actuation of said means after cach operation of the attaching mechanism.

7. A heel attaching machine having, in combination, a shoe support, power actuated mechanism for attaching a heel to a shoe sustained upon said support, power actuated means for bringing nails into position to bc driven and heels into position to be attached, and means under the control of said attaching mechanism for effecting the actuation of said means, l

S. A heel attaching machine having, in combination, a shoe support, power actuated mechanism for attaching` a heel to a shoe sustained upon said support, power actuated means for bringing nails into position to be driven and heels into position to be attached, and means under the control of said attaching mechanism for effecting the actuation of said means in timed relation to the opeiation of the attaching' mechanism.

9. A heel attaching machine having, in combination, a shoe support, power actuated mechanism for attaching a heel to a shoe sustained upon said support, power actuated means for bringing nails into position to be driven and heels intoA position to be attached, and means under the control of said attaching mechanism for effecting the actuation of said means after each operation of the attaching mechanism,

10. A heel attaching machine having, in combination, mechanism for driving attaching nails into a heel, and power actuated `means for supplying nails to said mechanism arranged to be brought into action by the return` movement of the mechanism after a. nail driving operation.

11. A heel attaching machine having, in

combination, mechanism for driving nails into a heel, a movable nail carrier for bringing nails into position to be driven, and power actuated means for reciprocating said carrier arranged to be brought into action at a.

single predetermined point in the movement oi" the nail driving mechanism.

12. A heel attaching machine having, in combination, mechanism for driving nails into a heel, a movable nail carrier for bringing nails into position to be driven, and power actuated means for reciprocating said carrier arranged to be brought into action at a predetermined point in the return movement ot the nail driving mechanism.

13, A heel attaching machine having, in combination, mechanism 'for driving nails into a heel, a movable carrier for bringing heels into position to be attached, and power actuated means for reciprocating said carrier arranged to be brought intoy action at a predetermined point in the movement of the nail driving' mechanism.

14. A lheel attaching machine having, in combination, mechanism for driving nails into a heel, a movable carrier for bringing heels into position to be attached, and power actuated means for reciprocating said carrier arranged to be brought intoaction at a pre determined the nail driving mechanism.

15. In a heel attaching machine, the combination oi' a heel attaching mechanism, a heel holder, a spanker plate, a nail carrier, and automatic means for bringing the heel holder, spanker plate, and nail carrier successively into the range of said mechanism in timed relation to its operation.

1G. A heeling machine having, in coinbination, mechanism for automatically attaching a heel to a shoe, driving means for operating said mechanism, a magazine for holding heels, mechanism for automatically taking a heel from and presenting itto said attaching mechanism, and driving means for said presenting mechanism arranged to be brought into action at the end of the attaching operation.

17. A heel attaching machine having, in combination, mechanism, and mechanism for automatically presenting a heel in 'attaching position with respect to 'the die at the end ol cach Cycle of operation of the machine.

18. A heel attaching machine having, in combination, a nailing die,'heel attaching mechanism, and means for automatically presenting during one cycle of operation of the machine a heel to be attached during the next succeeding cycle.

19. A heel attaching machine having, in combination, a nailing die, heel attaching mechanism, and means controlled by a continuously effective part of the machine for automatically depositing a load of nails in the Vdie during one cycle of operation of the machine to be used during the next succeeding cycle. y

20. A heel attaching machine having, in combination, a nailing die, heel attaching njiechan'ism, and means for automatically depositing a load ol nails in the die and presenting a heel in attaching position with rospect to the nailing die during one cycle oi operation of the machine to be the next succeeding cycle.'

21. In a heeling machine, the combination of mea-ns forpresenting heels to be attached, continuously operating driving means tending constantly tol actuate said presenting means,`means for holding said presenting means against the action of the driving means, and means for releasing the presenting' means to permit its operation under the iniiuence oi the driving means.`

22. In a heeling machine, the combination of a continuously driven shaft, a friction member connected to said shaft, a second friction member in driving relation to the first, a heel presenting device operatively point in the return movement of said magazine a nailing die, heel attaching used during connected to the second friction member, and detent means Yfor holding the heel presenting device stationary while the first friction member is in operation.

23. In a heeling machine, the combination of heel attaching mechanism, a heel presenting device, a spanker plate, a nail presenting device, and means for bringing theV spanker plate into the range of the attaching mechanism after one operation thereof and bringing successively the nail presenting device and heel presenting device into the range of said mechanismafter the next operation thereof'.

24;. In a heel attaching machine, the combination of a heel carrier, a spanker plate, and a nail carrier connected to move together, driving means for said devices, and means for stopping the driving means successively with the spanker plate and the heel carrier respectively in heel attaching position.

25. A heel attaching machineJ having, in combination, a shoe support, power actuated mechanism for attaching a heel to a shoe sustained upon said support, continuously effective means, means actuated thereby for bringing nails into position to be driven, and means under the. control of a power driven part of the machine for effecting the actuation of said nail-bringing means.

2G. A heel attaching machine having, in combination, a shoe support, power actuated mechanism for attaching a heel to a shoe sustained upon said support, power actuated meansy for bringing heels into position to be attached, means for effecting the actuation of said means, and means made effective in the operation of the machine for controlling the actuating means.

2T. A heel attaching machine having, in combination, a shoe support, power actuated mechanism for attaching a. heel to a shoe sustained upon said support, power actuated means for bringing heels into position to be attached,rmeans for effecting the actuation of said means in timed relation to the operation of the attaching mechanism, and means movable with the attaching mechanism for controlling the actuating means.

28. A heel attaching machine having, in combination, a shoe support, power actuated mechanism for attaching a heel to a shoe sustained upon said support, power actuated means for bringing nails into position to be driven and heels into position to be attached, and means under the control of a power driven part of the machine for effecting the actuation of said means.

In testimony whereof I have signed my name to this specification.

THOMAS LUND. 

